An Iowa native, featherweight Glenn now lives in Wisconsin, where he's a part of Milwaukee's famed Roufusport MMA Academy. Training since he was a teenager, the 24-year-old prospect opened his career at just 3-2 but has since gone 11 straight fights without a loss. Glenn made his World Series of Fighting debut in March, where he earned a third-round knockout over Alexandre Pimentel.

Glenn now meets New Jersey's own Rofi, a Team Bittencourt fighter who has earned all six of his career wins by way of stoppage. After opening his career in October 2010 with a knockout win, Rofi has since tapped out five consecutive opponents.

The Russian-born Dugulubgov, now a resident of Hackensack, N.J., fights for a second time under the World Series of Fighting banner. The 24-year-old Renzo Gracie-trained fighter debuted for the promotion in March, earning a unanimous-decision win over Chris Wade.

Dugulubgov faces North Carolina's Osbourne, who fights out of Angel's Gym in Fayetteville, in a 160-pound catchweight contest. Fighting professionally since April 2011, Osbourne is 4-1 in his past five contests, with the lone loss in that stretch coming to former Ring of Combat champion Ryan LaFlare.

Born in Rio de Janeiro, Brazilian bantamweight Honorio trains at Renzo Gracie Brazilian Jiu-Jitsu. After opening his career with seven wins in his first eight appearances, Honorio has struggled in recent bouts with top prospects Aljamain Sterling and Sean Santella but is poised to make a statement against a tough Rivera, who brings an impressive 11-fight win streak to the contest.

Rivera, a Team Tiger Schulmann fighter, hasn't tasted defeat since 2008. In fact, before turning pro, Rivera compiled an amateur record of 7-0, giving him an incredible 19-1 career mark at all levels of competition. Along the way, Rivera picked up 135-pound belts for highly respected regional promotions King of the Cage and Ring of Combat.

World Series of Fighting 5's two-and-a-half-hour NBC Sports Network telecast airs live at 9:30 p.m. ET/6:30 p.m. PT. The five-bout preliminary card, which also includes previously announced matchups of Gregor Gracie (7-3) vs. Rich Patishnock (5-1) and Neiman Gracie (0-0) vs. Darren Costa (0-1) streams on World Series of Fighting's official website, WSOF.com, beginning at 6:30 p.m. ET/3:30 p.m. PT.